Overall Plant Design Description (OPDD), low-Btu CO gas electric power plant. [504 MW output]

Technical Report · Fri Jul 01 04:00:00 EDT 1977

DOI:https://doi.org/10.2172/6771321· OSTI ID:6771321

This Overall Power Plant Design description (OPDD) for the integrated, low-Btu fixed-bed Coal Gasification System-Combined Cycle (CGS-CC) plant is intended to establish the functional specifications and control requirements for an advanced water-cooled gas turbine operating at 2600/sup 0/F and for the other major components and subsystems associated with the baseline combined cycle design. The overall plant incorporates the Fixed-bed-Coal Gasification System--Combined Cycle (FB-CGS--CC) to provide a net power output of 504 MW with a thermal efficiency of 41.42 percent, based on a higher heating value coal pile to bus-bar. The Entrained-Bed--Coal Gasification--Combined Cycle (EB-CGS-CC) was studied as an alternative plant in parallel with FB-CGS-CC. Study results of EB-CGS-CC are reported. Major systems for both FB and EB coal gas plants include the following categories: fuel system, prime cycle, bottoming cycle, balance of plant, integrated plant control, and electrical. Each of these major system categories is described. The FB coal gas plant operates as follows. Low-Btu coal gas is generated from run-of-mine coal in a bank of 14 gasifiers and fed through a low-temperature gas cleanup system which removes sulfur and other undesirable constituents from the gas before it is supplied to the gas turbine combustors. The prime cycle system accepts the low-Btu gas and burns it in two 180 MW gas turbine-generators. Extraction air from the gas turbine compressor provides air blast to the gasifiers. Exhaust gas from the gas turbine passes into a Heat Recovery Steam Generator (HRSG), where steam is produced for the bottoming cycle system which includes the two HRSGs, the single 155 MW steam-turbine generator, the condenser, and all steam cycle associated equipment and subsystems. The balance-of-plant system includes the water supply and preparation equipment, heat rejection equipment, and electrical and mechanical support systems.

• Research Organization: General Electric Co., Schenectady, N.Y. (USA). Gas Turbine Div.
• OSTI ID: 6771321
• Report Number(s): FE-1806-23
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404 -- Coal
Lignite
& Peat-- Gasification
20 FOSSIL-FUELED POWER PLANTS
200100* -- Fossil-Fueled Power Plants-- Power Plants & Power Generation
BOILERS
CHEMICAL REACTIONS
COAL GASIFICATION PLANTS
COMBINED-CYCLE POWER PLANTS
COMBUSTION
COMBUSTORS
CONTROL EQUIPMENT
DESIGN
ENERGY SOURCES
EQUIPMENT
FLUIDS
FOSSIL-FUEL POWER PLANTS
FUEL GAS
FUELS
GAS FUELS
GAS TURBINES
GASES
HIGH TEMPERATURE
INDUSTRIAL PLANTS
LOW BTU GAS
OPERATION
OXIDATION
POWER PLANTS
SPECIFICATIONS
STEAM GENERATORS
STEAM TURBINES
THERMAL POWER PLANTS
TURBINES
TURBOMACHINERY
VAPOR GENERATORS